Blast Report free essay sample

Blast Report The case study I received was about a family of four that was experiencing symptoms of fever, abdominal cramping, and diarrhea. The children were affected more severely than the adults. It seems that the family consumed spoiled food considering that their fridge broke early in the day and they ate the food that was in there later on. My blast came up with a 99. 6% match with Salmonella typhimurium. This seems to be an accurate match considering the symptoms related with a Salmonella typhimurium infection. Salmonella causes gastroenteritis with symptoms f diarrhea, vomiting, fever, and abdominal pain with elderly people, children and pregnant women being at greatest risk of developing infection. This is consistent with the familys children having more severe symptoms. Symptoms typically last two to five days. S. typhimurium causes infection by invading the intestinal mucosa and multiplying in specialized vacuoles and then invading the liver and spleen where it causes systematic disease. We will write a custom essay sample on Blast Report or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page S. typhimurium enters the host orally through spoiled or undercooked meat and the incubation period is about 12 to 24 hours. It can also be transmitted through the fecal matter or contaminated water which can easily happen in poorly developed countries with poor waste management. Infection of S. typhimurium is highest in countries with poor sanitation but it can occur in any part of the world. The infection should clear up on its own for healthy individuals with access to clean water and food but if the infection spreads to the bloodstream, antibiotics will need to be taken. Transmission can be easily prevented by properly handling and cooking food, and by washing hands often. Since this family is therwise healthy and has access to clean food and water, they should be fine within a few days with no need for antibiotics. S. typhimurium is a rod shaped gram-negative bacterium. It is a facultative anaerobe so it does not require oxygen to survive. It is also motile via use of flagella. Unlike most Salmonella species, S. typhimurium does not ferment lactose. The citation I selected discusses the effect of the addition of nisin to current Salmonella antibiotics. Overuse and abuse of antibiotics has lead to a serious ongoing problem of antibiotic resistance.

Free Essays on Expert Systems - Theories

Theories What distinguish expert systems from other computer systems is that they give advice based on judgments. A very important part of the field therefore is the development of algorithms for reasoning under uncertainty. The tasks in the field consist of development and implementation of methods for decision support as well as construction of specific expert systems. Semiotics is the study of signs, symbols and signification, and is therefore the study of how meaning is created, encoded and understood. Computational semiotics is understood here to be the application of semiotic theories to computer systems and interactive digital media. Three possible aspects of this are: Â · The way in which meaning can be created by, encoded in, or understood by, the computer (using systems or techniques based upon semiotics). Â · The way in which meaning in interactive digital media is understood by the viewer or user (again using systems or techniques based upon semiotics). Â · The way in which semiotics can be used as the starting point for a system for looking critically at the content of interactive digital media. Large-scale expert systems have found widespread use. However, developers have found that the cost of maintaining a knowledge base, over its lifetime, can be as high as the initial cost of its development. One response is to use machine learning techniques to correct the knowledge base as problems emerge. Unfortunately, standard induction methods seem ill-suited to this task, as they are designed to use training data to construct a knowledge base from scratch, and the rate at which training data is generated by field users is typically too low to support regeneration of the knowledge base each time a revision is needed. As domain knowledge is available (in the form of the knowledge base), it makes sense to take advantage of this information (even if imperfect) to bias the induction process. Techniques for theory revision... Free Essays on Expert Systems - Theories Free Essays on Expert Systems - Theories Theories What distinguish expert systems from other computer systems is that they give advice based on judgments. A very important part of the field therefore is the development of algorithms for reasoning under uncertainty. The tasks in the field consist of development and implementation of methods for decision support as well as construction of specific expert systems. Semiotics is the study of signs, symbols and signification, and is therefore the study of how meaning is created, encoded and understood. Computational semiotics is understood here to be the application of semiotic theories to computer systems and interactive digital media. Three possible aspects of this are: Â · The way in which meaning can be created by, encoded in, or understood by, the computer (using systems or techniques based upon semiotics). Â · The way in which meaning in interactive digital media is understood by the viewer or user (again using systems or techniques based upon semiotics). Â · The way in which semiotics can be used as the starting point for a system for looking critically at the content of interactive digital media. Large-scale expert systems have found widespread use. However, developers have found that the cost of maintaining a knowledge base, over its lifetime, can be as high as the initial cost of its development. One response is to use machine learning techniques to correct the knowledge base as problems emerge. Unfortunately, standard induction methods seem ill-suited to this task, as they are designed to use training data to construct a knowledge base from scratch, and the rate at which training data is generated by field users is typically too low to support regeneration of the knowledge base each time a revision is needed. As domain knowledge is available (in the form of the knowledge base), it makes sense to take advantage of this information (even if imperfect) to bias the induction process. Techniques for theory revision...